<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
<!-- qevent.cpp -->
  <title>QFocusEvent Class | Qt GUI 5.14.2</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td ><a href="../qtdoc/index.html">Qt 5.14</a></td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QFocusEvent</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtgui-index.html">Qt 5.14.2 Reference Documentation</a></td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">QFocusEvent Class</h1>
<!-- $$$QFocusEvent-brief -->
<p>The QFocusEvent class contains event parameters for widget focus events. <a href="#details">More...</a></p>
<!-- @@@QFocusEvent -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QFocusEvent&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="../qtcore/qevent.html">QEvent</a></td></tr></table></div><ul>
<li><a href="qfocusevent-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#QFocusEvent">QFocusEvent</a></b>(QEvent::Type <i>type</i>, Qt::FocusReason <i>reason</i> = Qt::OtherFocusReason)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#gotFocus">gotFocus</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#lostFocus">lostFocus</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> Qt::FocusReason </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#reason">reason</a></b>() const</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QFocusEvent-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>Focus events are sent to widgets when the keyboard input focus changes. Focus events occur due to mouse actions, key presses (such as <b>Tab</b> or <b>Backtab</b>), the window system, popup menus, keyboard shortcuts, or other application-specific reasons. The reason for a particular focus event is returned by <a href="qfocusevent.html#reason">reason</a>() in the appropriate event handler.</p>
<p>The event handlers <a href="../qtwidgets/qwidget.html#focusInEvent">QWidget::focusInEvent</a>(), <a href="../qtwidgets/qwidget.html#focusOutEvent">QWidget::focusOutEvent</a>(), <a href="../qtwidgets/qgraphicsitem.html#focusInEvent">QGraphicsItem::focusInEvent</a> and <a href="../qtwidgets/qgraphicsitem.html#focusOutEvent">QGraphicsItem::focusOutEvent</a>() receive focus events.</p>
</div>
<p><b>See also </b><a href="../qtwidgets/qwidget.html#setFocus-1">QWidget::setFocus</a>(), <a href="../qtwidgets/qwidget.html#focusPolicy-prop">QWidget::setFocusPolicy</a>(), and <a href="../qtwidgets/focus.html">Keyboard Focus in Widgets</a>.</p>
<!-- @@@QFocusEvent -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QFocusEvent[overload1]$$$QFocusEventQEvent::TypeQt::FocusReason -->
<h3 class="fn" id="QFocusEvent"><a name="QFocusEvent"></a>QFocusEvent::<span class="name">QFocusEvent</span>(<span class="type"><a href="../qtcore/qevent.html#Type-enum">QEvent::Type</a></span> <i>type</i>, <span class="type"><a href="../qtcore/qt.html#FocusReason-enum">Qt::FocusReason</a></span> <i>reason</i> = Qt::OtherFocusReason)</h3>
<p>Constructs a focus event object.</p>
<p>The <i>type</i> parameter must be either <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusIn</a> or <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusOut</a>. The <i>reason</i> describes the cause of the change in focus.</p>
<!-- @@@QFocusEvent -->
<!-- $$$gotFocus[overload1]$$$gotFocus -->
<h3 class="fn" id="gotFocus"><a name="gotFocus"></a><span class="type">bool</span> QFocusEvent::<span class="name">gotFocus</span>() const</h3>
<p>Returns <code>true</code> if <a href="../qtcore/qevent.html#type">type</a>() is <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusIn</a>; otherwise returns false.</p>
<!-- @@@gotFocus -->
<!-- $$$lostFocus[overload1]$$$lostFocus -->
<h3 class="fn" id="lostFocus"><a name="lostFocus"></a><span class="type">bool</span> QFocusEvent::<span class="name">lostFocus</span>() const</h3>
<p>Returns <code>true</code> if <a href="../qtcore/qevent.html#type">type</a>() is <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusOut</a>; otherwise returns false.</p>
<!-- @@@lostFocus -->
<!-- $$$reason[overload1]$$$reason -->
<h3 class="fn" id="reason"><a name="reason"></a><span class="type"><a href="../qtcore/qt.html#FocusReason-enum">Qt::FocusReason</a></span> QFocusEvent::<span class="name">reason</span>() const</h3>
<p>Returns the reason for this focus event.</p>
<!-- @@@reason -->
</div>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</acronym> 2020 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br/>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br/>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
   of their respective owners. </p>
</div>
</body>
</html>
